Try making up a hostname and setting the IP manually in the inventory, like: [server] newhost ansiblehost22.214.171.124. name: restart bind action: service namebind9 staterestarted onlyif: ansiblehostname masterserver. What we did here, is use two variables. This usage applies to the list of target hosts: for a play, the host pattern argument to the ansiblebut not xexample.com or x--). As an extension, it accepts Unicode word characters in hostname labels. In the above example, trying to ansible against the host alias jumper (which may not even be a real hostname) will contact 192.168.1.50 on port 5555. host.vm.hostname "shortname.myapp.dev" end end end.People out there suggest that you should run that command on your remote hosts in your Ansible playbooks to set the key dynamically.
But note that variable names have some restrictions in AnsibleTower name is: hostvars[tower][ansiblehostname] The epochs of the clients are: for host in groups[clients Host and Groups. File stored in /etc/ansible/hosts.For a large number of hosts that has a structured hostname ranges can be added to the host file. Ansiblehostname - As discovered by ansible. Ansible sshs into the host and gathers some facts. As part of the fact, it also discovers its hostname which is stored in ansiblehostname. An Ansible-specific SSH configuration file that defines the SSH bastion host and other parameters.Host bastion.example.com Hostname bastion.example.
com User ubuntu IdentityFile now check the file to have a clear view off all variables (facts) collected by ansible for your host like the well known inventoryhostname . The default hosts file location is /etc/ansible/hosts.of hosts are delimited by [header] elements - You can enter hostnames or IP addresses - A hostname/ip can be a member of multiple groups The hosts and ansible.cfg files should be familiar, but lets take a look at the provision.yml file.The variables instruct Ansible which user to create on the remote hosts. You can get the hostname by using inventoryhostname and the group by using group names. I have tried things like hostvars[ inventoryhostname ][ ansiblesshhost] and ip ansible -i hosts -m setup HOSTNAME.ansible -i hosts HOSTNAME -m shell -a "uptime". For example, execute a command on server1.example.com ] ansible -m setup . This will produce a lengthy JSON-formatted output with all the facts Ansible knows about your destination host. /etc/ansible/hosts. 1 2 3 4. [servers] server-name-1 ansiblehostremote.one.ip.address ansibleuserusername ansibleport3980 server-name-2 ansiblehost I have implemented Ansible for managing configuration on a large number AWS instances. set the friendly hostname from the playbook variable - name: set hostname hostname: name If you open the /etc/ansible/hosts you will find the sample host entries. Lets keeps this file as a backup and create our own hosts file. Lets create the backup of original hosts inventory file. In the above example, trying to ansible against the host alias jumper (which may not even be a real hostname) will contact 192.0.2.50 on port 5555. Along with the inventory, ansible-playbook checks for host and group-specific options. While these can be included in the hosts file itself, its cleaner to put them in hostvars/HOSTNAME and The Ansible hosts file contains groups of hosts, which we refer to when running Ansible commands.Replace secondaryserverip with the secondary servers hostname or IP address Like i said move your ansible-hostname into the roles folder (if you dont have one make one). As far as i know ansible only loads roles from the roles folder, which is probably your issue. In the dev/inventory file we put the Ansible hosts config with .ans.local hostnames.We are going to assign hostname as a name of container to reference them easily when needed. --- - hosts: all tasks: - shell: echo "hello world". Running the playbook.Its easy to do it using default inventory file /etc/ansible/hosts. To tell Ansible about the new hosts file, add -i ansible/hosts.ini. Its -i because the hosts file is known as your inventory. The file motd.j2 (placed in the templates-subdirectory of your role) could then look like this: Welcome to host ansiblehostname! ansiblehostname will then be replaced with the hostname. Due to our bastion host setup Ansible is unable to talk directly to our application servers so I had to find a way to proxy SSH connectionsHost bastion User ec2-user HostName Set hostname via Ansible hostname module and updates /etc/hosts with hostname and domain.hostnamedomain - new domain name. of groups ansible -a "hostname" All hosts With the : character you can combine groups/ hosts ansible localhost:192.168.:dev -a "hostname". Using Ansible with the Packet host.- hostname: name: web01. Status . This module is flagged as preview which means that it is not guaranteed to have a backwards compatible interface. Some random useful things for Ansible users: inventoryhostname inventory hostname contains the name of the current node being worked on. (as in, what it is defined in your hosts file as) Test remoting from the Ansible host. user prompted for REALM name and KDC for Kerberos sudo apt-get install python-dev libkrb5-dev krb5-user . Starting from v2.0 Ansible supports variable substitution in task/handler names: https://github.com/ansible/ansible/issues/10347, so these examples will work as expected: - name If unreachable on port 22, check if were able to reach inventory hostname on ansibleport provided by the inventory from localhost - name: Check if were using the In Ansible you can access other host variables using hostvars[hostname] but not group variables. The way described here is workable, but do I consider it a dirty hack. add a host with a non-standard port local to your machines - addhost: name: " newip : newport " . add a host alias that we reach through a tunnel ( Ansible < 1.9) - addhost: hostname Managed Hosts entries are stored in a host inventory file, it is a text file on control node which consists of managed host name or ip addresses. In Ansible we can manage two type hosts inventory If hostname starts with ! it will excluded from host execution. Lets say if we want to exclude host1 and host2 from ansible-playbook execution use following commandi hosts.yml dbservers -m service -a "namemysqld statestarted" ansible i hosts.ymlslave TASK: [mysql | Streaming the backup from backupsrc to inventory hostname ] skipping The template file: 127.0.0.1 localhost ansiblehostname .action: template srctemplates/hosts.j2 dest/etc/hosts. Next, we will specify our host. This is the file that defined in hostfile under ansible.cfg. [core] coresw01 ansiblehost10.0.0.51 ansiblehostnamecoresw01 coresw02 ansiblehost [nodes] admin.rhel.osmaster ansiblesshhost126.96.36.199 openshiftip188.8.131.52 openshiftschedulabletrue openshift hostnameadmin.rhel.osmaster Where does Ansible get ansible.cfg? The same file explains: nearly all parameters can be overridden in ansible-playbook or with command line flags. ansible will read ANSIBLE CONFIG Aliasing An Ansible Host. When specifying the hosts that Ansible can interact with in the /etc/ ansible/hosts file, you can put just the IP address of the host server, like so Ideally Id like to SSH to a server via its Ansible hostname rather than having to look up its IP or machine name. ansible-hostname role. A role to manage hostnames.It has many option on how to handle what is short name and what is fqdn. Ansible has a default inventory file used to define which servers it will be managing. After installation, theres an example one you can reference at /etc/ ansible/hosts. If youre looking to set the hostname for a system using Ansible then look no further.Simple set the name property to what you want the new hostname to be. Within the for loop the hostvars[host].ansiblehostname will contain the name of the current remote host.
GitHub is home to over 20 million developers working together to host and review code, manageansiblenodename . and the unqualified hostname shows the string before the first period(.)